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Optical Engineering

(Hg,Cd)Te Photodiodes for Detection of Two-Micrometer Infrared Radiation
Author(s): Timothy J. Tredwell
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Paper Abstract

Detection of 1.5 to 2.3-micrometer radiation is important for a number of earth resource and military applications. Hgi_xCdxTe photodiodes have recently been developed which offer substantial improvement in operating temperature for detection of 1.5 to 2.3-micrometer radiation. For example, arrays of Hg1-xCdxTe photodiodes with cutoffs in the 2.0 to 2.3-micrometer spectral range have achieved detectivities of 1.0 x 1012 - 4.0 x 1012 cm Hz1/2/W at an operating temp-erature of 193 K. In this paper we present results on these (Hg,Cd)Te photodiode arrays.

Paper Details

Date Published: 1 June 1977
PDF: 4 pages
Opt. Eng. 16(3) 163237 doi: 10.1117/12.7972138
Published in: Optical Engineering Volume 16, Issue 3
Show Author Affiliations
Timothy J. Tredwell, Honeywell Radiation Center (United States)

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